再论东濮凹陷沙三段成盐模式

依据井点X衍射矿物和氯同位素垂向分布资料,分析东濮凹陷盐岩垂向序列,并结合咸水蒸发实验和盐湖钻孔资料分析盐岩沉积及保存过程,研究东濮凹陷沙三段成盐模式。结果表明:浅水蒸发成盐过程中保持有足够的水深,为盐下有机质的保存提供便利,浅水盐岩与油页岩及黄铁矿伴生不矛盾;淡水的注入是影响垂向盐韵律组成的关键因素,注入量少时可能引起氯同位素的变化,随着注入量的增大可能引起盐韵律中氯化物乃至硫化物的缺失;凹陷满盆含砂、控边断层上盘缺少粗碎屑的现象可能是边界断层长期小规模活动造成的,东濮凹陷沙三段盐岩更有可能是浅水蒸发成因。     

屏蔽氯离子干扰高盐榨菜废水中COD的测定方法

高盐废水中氯离子的存在会严重干扰COD的测定,因此,如何屏蔽氯离子干扰准确测定其COD的难点之一。为研究高盐榨菜废水中更为准确的COD测定方法,实验中采用了2种屏蔽氯离子的方法：硫酸汞屏蔽法和硝酸银屏蔽法,屏蔽后再通过传统回流冷凝法来测定实验模拟配水水样中的COD,并比较两种方法的屏蔽效果。结果表明：硫酸汞屏蔽法的最佳HgSO4/Cl -值为40,此时误差最小,为1.43%,硝酸银滴定法的误差为0.21%,得出硝酸银屏蔽法的屏蔽效果较好;再分别用这两种方法屏蔽榨菜废水中的氯离子后测定其COD值,结果显示两种方法测定的COD相差了20 mg/L,而硫酸汞屏蔽法更适合于榨菜废水中COD的测定。综合以上2种方法的屏蔽特点,采用先用硝酸银滴定氯离子浓度,再添加少量的硫酸汞的联合方法测定榨菜废水中的COD值,结果表明此方法更可靠。     

X射线和紫外线激发下BaFCl_xBr_(1-x):Eu~(2+)的发光

制备了ＢａＦＣｌｘＢｒ１－ｘ：Ｅｕ２＋（ｘ＝００，０２，０４，０６，０８，１０）四元系列氟卤化合物．对于不同的Ｃｌ／Ｂｒ比值样品，研究了其在Ｘ射线和紫外线激发下的发光性质；同时研究了在Ｘ射线激发下的发光强度随温度的变化关系，并发现这种关系随Ｃｌ／Ｂｒ比值的变化呈现一定的规律性；最后，测量了在紫外线激发下，其光致荧光寿命与Ｃｌ／Ｂｒ比值的关系     

化学浴法沉积SnS薄膜的机理分析

研究了以硫代乙酰胺、三乙醇胺、氯化亚锡和氨水作反应物，氯化铵作缓冲剂，采用化学浴法制备SnS薄膜的化学反应机理，分析了络合剂和氯化铵对反应的影响。结果表明，硫代乙酰胺和氯化亚锡主要为SnS薄膜的形成提供Sn^2 与S^2-，三乙醇胺作为络合剂可以维持溶液中Sn^2 的浓度，氯化铵的加入可使反应液PH值在反应中平稳变化，有利于高品质薄膜的形成。     

XRF测定富铕混合稀土氧化物中铁,硅,铝,镁,钙,氯的含量

提出了一种减小基体效应的方法，使待测样品与标准样品的基体非常相似，该方法能同时测定富铕混合稀土氧化物中多种非稀土元素的含量，提高了分析速度。     

{MoOS3Cu3 （PPh3）3Cl}的合成及晶体结构

本文合成并测定了{MoOS_3Cu_3(PPh_3)C1}的晶体结构,簇合物属正交晶系,空间群为P_(212121)晶胞参数:a=12.833(5)×10~(-10)m,b=17.552(5)×10~(-10)m,c=22.778(7)×10~(-10)m;Z=4。结构用直接法解出,经最小二乘法修正,偏离因子R=0.069.     

Ni(PZ)_4Cl_2型化合物的光谱及EPR参量

本文利用d8（D1h）全组态混合统一晶场理论对Ni（PZ）4Cl2型化合物的吸收光谱、基态ZFS、EPR参量进行了统一的计算和理论分析，理论结果与实验一致。从而对其光、磁性质作出完整、合理、统一的解择。     

Some problems in application of MDD model (Ⅰ )——Subtraction of excess Ar released at low temperature

In the process of 40Ar/39Ar experiment, excess 40ArC40ArE) released from K-feldspar at low temperature step may mask the real age and thermal history information of the sample. A method for Cl correction of 40ArE has been introduced and successively used in correction of abnormally high age values of three K-feldspar samples at low temperature step taken from the Red River fault zone. It provides a reliable age information at low temperature step for further multiple diffusion domain (MOD) model fitting.     

An experimental study of tin partition between melt and aqueous fluid in F/Cl-coexisting magma

In order to investigate the formation mechanism of tin ores associated with F-bearing granite, an ex-perimental study of tin partition between F-bearing granitic melt and coexisting HCl-bearing aqueous fluid was conducted at 850℃ and 100MPa with fo2 approaching NNO. Geochemical behavior of tin was traced by changes in starting solid materials with different alumina saturation index ASI, in F content and in starting fluids of various HCl concentrations. The results show that DSn increases with ASI of melt and peraluminous melt is favorable for tin partition into aqueous fluid in the F/Cl-coexisting sys-tem. Aqueous fluid of higher HCl concentrations is advantageous for enrichment of tin. Furthermore, chlorine contents in glass run products correlate positively with F and Cl contents in the magma. In the F/Cl-coexisting system, granitic melts with high F contents (> ~1 wt%) could extract and enrich tin in the melt which can serve as a reservoir for the formation of tin ores. However, the partition coefficient of tin would increase significantly when F contents in the melt were below 1 wt%. Therefore, the de-crease of F contents is favorable to the partition of tin into aqueous fluid with high HCl contents, thus promoting deposition of hydrothermal tin ores.     

低压离子色谱法测定水样中的F^—和Cl^—

采用低压离子色谱法测定水样中的Ｆ－和Ｃｌ－，选择了最佳操作条件．测定结果表明该方法精密度好、回收率高、线性范围宽、检出限低，通过对比样品测定结果可靠，效果令人满意